31. In a line of cherry tomatoes, the average fruit weight is 12 grams. A plant producing tomatoes with an average of 7 grams is used in one self-fertilization cross to produce a line of smaller tomatoes, and a plant producing tomatoes of 21 grams is used in a second cross to produce larger tomatoes. What is the selection differential (S) for the fruit weight in each cross? If narrow-sense heritability (h2) for this trait is 0.7, what are the expected responses to selection (R) for fruit weight in the crosses?

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.